The calculated distance (air line) between Concepción and Ascención de Guarayos is approximately 156 miles respectively 252 kilometers.
By car or train, the actual journey to Ascención de Guarayos is certainly longer, as only the direct route (as the crow flies) between Concepción and Ascención de Guarayos has been calculated here.
Air line (approximately)
252 kilometers
136 nautical miles